October 2017

May 2017

Google searches and other links to Google are now https instead of
http.

Links displayed when you print BrownMath.com pages are now
https instead of http. (The pages themselves have been https since
January.)

January 2017

BrownMath.com is now served up as secure HTML (https
protocol). All old bookmarks are redirected automatically.

October–December 2016

The textbook Trig without Tears got
a long-overdue makeover. I added more examples, more
pictures, and a set of practice problems (with full solutions) for
every chapter. There’s a new chapter on how trig sheds light on
complex numbers, and new or rewritten sections in several other
chapters. The asides that were in a separate Notes chapter have
moved, as BTWs, to the chapters where they are most relevant.

February 2016

Change “What’s Different between TI-83 and TI-84?”
to Differences among TI-83s and TI-84s. Update the article for the color
models of TI-84, and firmware upgrades to the black&white
models.

January 2016

All the Excel workbooks in the
statistics and
business sections of the site are now in
Excel 2007–2016 format.

Trig without Tears had a vintage 2002 program for
solving triangles on the TI-83. I thoroughly overhauled it and made it
compatible with all TI-83 Plus and TI-84 Plus models, including the
new color models, then moved it to a
new article with worked examples
and screen shots.

I was using obsolete code for the Donate button, and it took you
to a PayPal page that didn’t even mention BrownMath.com.
(Still, thanks to the people who persevered and made donations!)
I’ve fixed that.

Several articles weren’t referenced from the
site map or the section index
pages; now they all are.

“Binomial Probability Distribution on TI-83/84” is
withdrawn, because the
textbook does a better job.

December 2015

The MATH200B program
didn’t display well with the new color TI-84 models, TI-84 Plus
C Silver Edition and TI-84 Plus CE. I first created separate programs
for the new calculators, but that was a dead-end approach.

Both MATH200B and
MATH200A now sense whether
they’re running on a high-resolution TI-84, and adjust their
display format accordingly. Sometimes that even lets one screen hold
the information of two screens on the older calculators.